background image

24        Warranty

Warranty Limitations

EXCEPT AS EXPRESSLY PROVIDED HEREIN, THERE ARE NO OTHER 
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT 
LIMITED TO WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A 
PARTICULAR PURPOSE, WHICH EXTEND BEYOND THE DESCRIPTION 
OF THE WARRANTY HEREIN AND FURTHER NAVIEN SHALL NOT BE 
LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, 
PUNITIVE OR OTHER SIMILAR DAMAGES THAT MAY ARISE, 
INCLUDING LOST PROFITS, DAMAGE TO A PERSON OR PROPERTY, 
LOSS OF USE, INCONVENIENCE, OR LIABILITY ARISING FROM 
IMPROPER INSTALLATION, SERVICE OR USE OF THE PRODUCT. 
ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
ARISING UNDER STATE LAW ARE LIMITED IN DURATION TO THE 
PERIOD OF COVERAGE PROVIDED BY THIS WARRANTY, UNLESS THE 
PERIOD PROVIDED BY STATE LAW IS LESS.

No one is authorized to make any other warranties on behalf of 
Navien. Some states do not allow the exclusion or limitation of 
incidental or consequential damages, or how long an implied 
warranty lasts, so the above limitation may not apply to you.

This Limited Warranty gives you specific legal rights and you may 
also have other rights which vary from state to state.

What is not covered?

Navien’s Limited Warranty shall be void in the event of an 
occurrence of any of the following:

 

Ɣ

Improper installation, including but not limited to, installation in 
violation of applicable rules, laws or building codes, inadequate 
water quality, condensate damage, improper venting, incorrect 
gas type, water pressure, absence of a drain pan, improper 
conversion from Natural Gas source to Propane, reinstallation at 
another location, etc.

 

Ɣ

Accident, abuse or misuse including but not limited to 
installation for non- recommended uses, failure to follow or 
comply with the User’s Operational Manual, etc.

 

Ɣ

Improper maintenance including but not limited to, scale 
buildup, vent blockage, failure to maintain, etc.

 

Ɣ

Modification, alteration, addition of non-approved components, 
or misapplication of the Product in any manner.

 

Ɣ

Any damage caused by local adverse conditions including 
but not limited to water quality, hard water deposits, lime or 
mineral build-up, operating in corrosive atmospheric elements, 
alterations in smell or taste of water that have an adverse 
reaction on the unit, etc.

 

Ɣ

Damage or problems caused by gas flow issues, electrical surges, 
flooding, fire, freezing, abnormal external temperature, force 
majeure, riot, act of war, or any acts of God.

 

Ɣ

Performance problems caused by improper sizing of the boiler, 
the gas supply line, the venting connection, combustion air 
openings, electric service voltage, wiring, fusing or any other 
components, parts or specifications.

 

Ɣ

Vibration and noise unless caused by a defect in materials or 
workmanship. Any other causes other than defects in materials 
or workmanship.

 

Ɣ

Operating the Product at water temperatures outside the factory 
calibrated temperature limits and/or exceeding the maximum 
setting of the high limit control.

 

Ɣ

Subjecting the heat exchanger to pressures or firing rates 
greater or lesser than those shown on the rating plate or 
removal of or alteration to the rating plate.

 

Ɣ

Installation at any location outside the United States or Canada.

 

Ɣ

Improper conversion from natural gas to liquid propane gas or 
liquid propane gas to natural gas or attempt to operate with a 
type of gas not specified for the boiler.

 

Ɣ

Accidental or intentional damage.

There is no warranty on any Product purchased through the 
internet or from any installer that obtained the Product from a 
supplier or distributor not authorized by Navien.

Summary of Contents for NBH Series

Page 1: ...our gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified...

Page 2: ...oiler On or Off 9 3 2 Adjusting the Temperature 9 3 3 Viewing Basic Information 10 3 4 Resetting the Boiler 11 4 Maintaining the Boiler 12 4 1 Cleaning the Boiler 12 4 2 Draining the Boiler 12 4 3 Cle...

Page 3: ...tment C Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas co...

Page 4: ...er using a lower temperature setting Do not leave children the elderly or disabled persons unsupervised Do not allow small children to play unsupervised in the bathroom Do not allow anyone to change t...

Page 5: ...ler in any other country will void the manufacturer s warranty Should overheating occur or the gas supply fail to shut off turn off the manual gas valve to the appliance WARNING Shut off the gas suppl...

Page 6: ...e temperature and if necessary initiates a safety heating cycle to prevent internal equipment damage due to freezing temperatures Short Circuit Protection Any short circuit occurring in the boiler s e...

Page 7: ...n Refer to the following table for detailed information a Space heating mode f S Supply water control Indicates space heating mode operation Indicates supply water control status b Error g R Return wa...

Page 8: ...ler s operation such as space heating and DHW supply temperatures Refer to the following table for detailed information k Diagnostics button n Up button For installers only Increases the temperature l...

Page 9: ...olute MIN to 149 F 65 C Absolute MAX You can adjust the temperature range in the parameter settings menu The boiler will retain your settings during a power outage WARNING Follow the instructions belo...

Page 10: ...ting the DHW Indirect Supply Temperature WARNING Before adjusting the water temperature read To prevent burns on page 4 carefully Water above 120 F can cause instant scalding severe burns or death To...

Page 11: ...Troubleshooting section of this manual or contact Technical Support at 1 800 519 8794 Display Description psi O R S R Boost interval time set by installer psi O R S R Space heating water pressure in...

Page 12: ...e resistant but it is not waterproof Keep it as dry as possible 4 2 Draining the Boiler You will need to drain the boiler before performing maintenance tasks such as to prevent the boiler from freezin...

Page 13: ...clean the air intake filter every 3 4 months To clean the air intake filter 1 Press the Power button on the front panel to turn off the boiler MODE 2 Disconnect the power supply to the boiler 3 Remov...

Page 14: ...of the boiler 6 Remove the filter from the plastic assembly Dust and rinse it with clean running water 7 Allow the filter to dry completely 8 Place the filter assembly back into the boiler and secure...

Page 15: ...ringdefect andtherefore Navienwillnotwarrant any damages due to freezing The installer is responsible for ensuring that there is sufficient make up air to avoid such a situation and the owner is respo...

Page 16: ...emove and clean space heating strainer Remove and clean inlet water filter 4 5 Maintenance Schedules Regular maintenance is required to operate the boiler safely Refer to the maintenance schedules bel...

Page 17: ...aminants listed in Installation Operation Manual If any of these are present in the boiler intake air vicinity they must be removed If they cannot be removed reinstall the air and vent lines per the I...

Page 18: ...ring the valve inoperative Such conditions are not detectable unless the valve and its components are physically removed and inspected This inspection must only be conducted by a plumbing contractor o...

Page 19: ...iring making sure wires are in good condition and securely attached Checking the Control Settings 1 From the front panel enter the Diagnostics Mode and check all settings Adjust settings if necessary...

Page 20: ...llow the solution to circulate through the boiler Refer to the manufacturer s literature for information about the circulation time 10 Rinse the cleaning solution from the boiler a Remove the free end...

Page 21: ...the system in stand by Make sure the power is on and plugged into the outlet with the correct voltage Press the Power button and raise the setting temperature Make sure the boiler is turned on Is the...

Page 22: ...eration heating supply thermistor Auto reset E218 Abnormal operation heating return thermistor Alarm E271 Temperature differential limit Alarm E278 Abnormal operation system supply thermistor Alarm E2...

Page 23: ...at issue The replacement component or product will be warranted only for the unexpired portion of the applicable warranty period for the original component or Product The heat exchanger is covered by...

Page 24: ...tion for non recommended uses failure to follow or comply with the User s Operational Manual etc Improper maintenance including but not limited to scale buildup vent blockage failure to maintain etc M...

Page 25: ...Notes...

Page 26: ......

Page 27: ...tact a licensed professional for the affected system for example a plumber or electrician When you contact Technical Support please have the following information at hand Model number Serial number Da...

Reviews: